nl2br

实例

例子 1

在字符串中的新行（\n）之前插入换行符：

<span class="token php language-php"><span class="token delimiter important"><?php</span>
<span class="token keyword">echo</span> <span class="token function">nl2br</span><span class="token punctuation">(</span><span class="token string double-quoted-string">"One line.\nAnother line."</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
<span class="token delimiter important">?></span></span>

以上代码的浏览器输出：

One line.
Another line.

以上代码的 HTML 输入（查看源代码）：

One line.<br />
Another line.

亲自试一试

例子 2

通过使用 xhtml 参数，在新行（\n）之前插入换行符：

<span class="token php language-php"><span class="token delimiter important"><?php</span>
<span class="token keyword">echo</span> <span class="token function">nl2br</span><span class="token punctuation">(</span><span class="token string double-quoted-string">"One line.\nAnother line."</span><span class="token punctuation">,</span><span class="token constant boolean">false</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
<span class="token delimiter important">?></span></span>

以上代码的浏览器输出：

One line.
Another line.

以上代码的 HTML 输入（查看源代码）：

One line.<br>
Another line.

亲自试一试